[MacViews] Implement colored window frames.

chrome/browser/ui/views/apps/chrome_native_app_window_views_aura.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/views/apps/chrome_native_app_window_views_aura.h"
 
 #include "apps/ui/views/app_window_frame_view.h"
 #include "ash/ash_constants.h"
 #include "ash/frame/custom_frame_view_ash.h"
 #include "ash/screen_util.h"
@@ skipping 156 matching lines @@
                                                       init_params,
                                                       widget);
 
   if (ash::Shell::HasInstance() && use_default_bounds) {
     // Open a new panel on the target root.
     init_params->bounds = ash::ScreenUtil::ConvertRectToScreen(
         ash::Shell::GetTargetRootWindow(), gfx::Rect(GetPreferredSize()));
   }
 }
 
-apps::AppWindowFrameView*
+views::NonClientFrameView*
 ChromeNativeAppWindowViewsAura::CreateNonStandardAppFrame() {
-  apps::AppWindowFrameView* frame =
-      ChromeNativeAppWindowViews::CreateNonStandardAppFrame();
+  apps::AppWindowFrameView* frame = static_cast<apps::AppWindowFrameView*>(

[tapted, 2015/05/14 04:23:50]

This isn't so nice.. What about making
ChromeNativeAppWindowViews::CreateNonStandardAppFrame() a pure virtual function,
and moving its definition in here?

[jackhou1, 2015/05/14 06:20:40]

Done.

+      ChromeNativeAppWindowViews::CreateNonStandardAppFrame());
 
   // For Aura windows on the Ash desktop the sizes are different and the user
   // can resize the window from slightly outside the bounds as well.
   if (chrome::IsNativeWindowInAsh(widget()->GetNativeWindow())) {
     frame->SetResizeSizes(ash::kResizeInsideBoundsSize,
                           ash::kResizeOutsideBoundsSize,
                           ash::kResizeAreaCornerSize);
   }
 
 #if !defined(OS_CHROMEOS)
@@ skipping 176 matching lines @@
   ChromeNativeAppWindowViews::UpdateShape(region.Pass());
 
   aura::Window* native_window = widget()->GetNativeWindow();
   if (shape() && !had_shape) {
     native_window->SetEventTargeter(scoped_ptr<ui::EventTargeter>(
         new ShapedAppWindowTargeter(native_window, this)));
   } else if (!shape() && had_shape) {
     native_window->SetEventTargeter(scoped_ptr<ui::EventTargeter>());
   }
 }